i added my $var = <STDIN>; to see my messages, and i discover that the form was open !!!

i try to get the value of the $access_obj->DoCmd->OpenForm('Formulaire1'); it is null (undef). that is why i get the warning message ...

so the post can be closed. (how ?)

Access application doesn't return a value for this call, and a 'action to wait' is needed.